Drinking straw



FIG. 1 is a front view of a drinking straw;

FIG. 2 is a rear view of the drinking straw of FIG. 1;

FIG. 3 is a top perspective view of the drinking straw of FIG. 1;

FIG. 4 is an enlarged bottom view of the drinking straw of FIG. 1;

FIG. 5 is a right view of the drinking straw of FIG. 1;

FIG. 6 is a left view of the drinking straw of FIG. 1; and,

FIG. 7 is a perspective view of the drinking straw of FIG. 1.

The broken line showing portions of drinking straw forms no part of the claimed design. 

CLAIM We claim the ornamental design for a drinking straw, as shown and described. 